Behavior; Re-Parameterization In Online-Mode - ABB S900 Manual

I/O System S900
Communication Interface for PROFIBUS DP, CI920
Parameter
Redundancy mode
Power supply
Cyclic data*
HCIR WCBC base
HCIR WCBC factor
HCIR active
Address Offset value
Address Offset
SF1
SF2
SF3
*) only available / relevant for CI920 with own cyclic data (CIPB C and CIPB CD)

Behavior

Cold start
A parameter telegram sent by the master is submitted to a plausibility check
in the S900. The system can only start up properly when the parameter
telegram is free of errors. If there are any errors in the telegram, they are
communicated to the operator via the diagnostic function.

Re-parameterization in online-mode

This term refers to the uninterrupted download of an updated parameter data
set into a slave. While this procedure is in progress, the DataExchange state is
never left. The I/O System S900 permits uninterrupted downloading if the
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Settings Description
off In case of an error of the active CI920 or its PROFIBUS
line the control takes over to the passive CI920, if
plugged.
mode 1 Two communication interfaces for line and redundancy.
mode 2 Reserved
mode 3 Reserved
single No supervision (diagnostics) of redundant power
supplies.
redundant A power supply failure leads to a diagnostics.
function 1 Reserved
function 2 Reserved
function 3 Reserved
special Reserved
0..6300ms in Worst Case Bus Cycle. Timeout for monitoring the
steps of 100ms online re – configuration (HCIR). If the PROFIBUS –
master supports HCIR, these parameters are set
automatically.
: 16 / : 1 The entered time constant WCBC base can be
multiplied by 16.
on / off This bit has to be set by the master before the following
LeaveMaster – telegram starts the HCIR – sequence.
0..124 Offset of the address of the redundant CI920.
On / off Address Offset adjustment enable / disable
Reserved
Reserved
Reserved
3BDD010422R0101